1j7e

A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein

Method: X-RAY DIFFRACTION

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1. Protein Identity and Related Structures Protein Identity & Related Structures

vitamin D binding protein

OrganismNot specified

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein monomer	Monomer	Protein 1	3-(2-{4-[2-(5-HYDROXY-2-METHYLENE-CYCLOHEXYLIDENE)-ETHYLIDENE]-7A-METHYL-OCTAHYDRO-INDEN-1-YL}-PROPYL)-PHENOL × 1 OLEIC ACID × 1 water × 1	Consistent with protein count
2	Protein monomer	Monomer	Protein 1	3-(2-{4-[2-(5-HYDROXY-2-METHYLENE-CYCLOHEXYLIDENE)-ETHYLIDENE]-7A-METHYL-OCTAHYDRO-INDEN-1-YL}-PROPYL)-PHENOL × 1 OLEIC ACID × 2 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	VTDB_HUMAN
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–458； UniProt 17–474 Author chain B； PDBConstruct 1–458； UniProt 17–474

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	1j7e
Deposition date deposition_date	2001-05-16
Structure title title	A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein
Keywords keywords	vitamin D binding, vitamin D3 analogue, Group-specific component, Gc-globulin, TRANSPORT, LIGAND BINDING PROTEIN; TRANSPORT, LIGAND BINDING PROTEIN
Experimental Method method	X-RAY DIFFRACTION

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

1j7e__assembly_2__model_1

Assembly 2 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

1j7e__assembly_2__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

1j7e__assembly_2__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	26.71 Å
Rg (electron density)	25.64 Å
Total Rg	26.47 Å
Atom count	3489
Residues	447
Excluded volume	62470 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`1j7e__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`1j7e__assembly_2__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Description description	vitamin D binding protein
Molecular weight formula_weight	51277.3 kDa
Source method src_method	nat
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	7170

LERGRDYEKNKVCKEFSHLGKEDFTSLSLVLYSRKFPSGTFEQVSQLVKEVVSLTEACCAEGADPDCYDTRTSALSAKSCESNSPFPVHPGTAECCTKEGLERKLCMAALKHQPQEFPTYVEPTNDEICEAFRKDPKEYANQFMWEYSTNYGQAPLSLLVSYTKSYLSMVGSCCTSASPTVCFLKERLQLKHLSLLTTLSNRVCSQYAAYGEKKSRLSNLIKLAQKVPTADLEDVLPLAEDITNILSKCCESASEDCMAKELPEHTVKLCDNLSTKNSKFEDCCQEKTAMDVFVCTYFMPAAQLPELPDVELPTNKDVCDPGNTKVMDKYTFELSRRTHLPEVFLSKVLEPTLKSLGECCDVEDSTTCFNAKGPLLKKELSSFIDKGQELCADYSENTFTEYKKKLAERLKAKLPDATPTELAKLVNKRSDFASNCCSINSPPLYCDSEIDAELKNIL

Entity 2 Entity 2 non-polymer

Description description	3-(2-{4-[2-(5-HYDROXY-2-METHYLENE-CYCLOHEXYLIDENE)-ETHYLIDENE]-7A-METHYL-OCTAHYDRO-INDEN-1-YL}-PROPYL)-PHENOL
Molecular weight formula_weight	406.6 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 non-polymer

Description description	OLEIC ACID
Molecular weight formula_weight	282.5 kDa
Source method src_method	syn
Copy count entity_count	3

Entity 4 Entity 4 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	246

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6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (6 domains)

Domain ID domain_id	d1j7ea1
Class class	a — All alpha proteins
Fold Fold fold	a.126 — Serum albumin-like
Superfamily Superfamily superfamily	a.126.1 — Serum albumin-like
Family Family family	a.126.1.1 — Serum albumin-like

Domain ID domain_id	d1j7ea2
Class class	a — All alpha proteins
Fold Fold fold	a.126 — Serum albumin-like
Superfamily Superfamily superfamily	a.126.1 — Serum albumin-like
Family Family family	a.126.1.1 — Serum albumin-like

Domain ID domain_id	d1j7ea3
Class class	a — All alpha proteins
Fold Fold fold	a.126 — Serum albumin-like
Superfamily Superfamily superfamily	a.126.1 — Serum albumin-like
Family Family family	a.126.1.1 — Serum albumin-like

Domain ID domain_id	d1j7eb1
Class class	a — All alpha proteins
Fold Fold fold	a.126 — Serum albumin-like
Superfamily Superfamily superfamily	a.126.1 — Serum albumin-like
Family Family family	a.126.1.1 — Serum albumin-like

Domain ID domain_id	d1j7eb2
Class class	a — All alpha proteins
Fold Fold fold	a.126 — Serum albumin-like
Superfamily Superfamily superfamily	a.126.1 — Serum albumin-like
Family Family family	a.126.1.1 — Serum albumin-like

Domain ID domain_id	d1j7eb3
Class class	a — All alpha proteins
Fold Fold fold	a.126 — Serum albumin-like
Superfamily Superfamily superfamily	a.126.1 — Serum albumin-like
Family Family family	a.126.1.1 — Serum albumin-like

CATH v4.4 (10 domains)

Domain ID domain_id	1j7eA01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eA02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eA03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eA04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eA05
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eB01
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eB02
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eB03
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eB04
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

Domain ID domain_id	1j7eB05
Class class	1 — Mainly Alpha
Architecture architecture	10 — Orthogonal Bundle
Topology topology	246 — Serum Albumin; Chain A, Domain 1
Homologous superfamily homologous superfamily	10 —

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Unit-cell length a length_a	131.977 Å
Unit-cell length b length_b	131.977 Å
Unit-cell length c length_c	73.420 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	8

Space group space_group	P 43
Space-group number int_tables_number	78
Crystal system crystal_system	—

Resolution resolution	2.550 Å
Low-resolution limit resolution_low	29.510 Å
R factor r_factor	—
R_work r_work	0.2130
R_free r_free	0.2630

A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein

1. Protein Identity and Related Structures Protein Identity & Related Structures

vitamin D binding protein

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1j7e__assembly_2__model_1

1j7e__assembly_2__model_1 | I(q)

1j7e__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (6 domains)

CATH v4.4 (10 domains)

7. Citations (1)

A Structural Basis for the Unique Binding Features of the Human Vitamin D-binding Protein

1. Protein Identity and Related Structures Protein Identity & Related Structures

vitamin D binding protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

1j7e__assembly_2__model_1

1j7e__assembly_2__model_1 | I(q)

1j7e__assembly_2__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (4)

Entity 1 Entity 1 polymer

Polymer Polymer

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 non-polymer

Entity 4 Entity 4 water

6. Fold Classification (SCOP + CATH) 16 domains

SCOP 2.08 (6 domains)

CATH v4.4 (10 domains)

7. Citations (1)